Yaesu FT DX 1200, Operation Manual

Page: 18 / 140

Page 16
F T
DX
1200 O
PERATING
M
ANUAL
[
POWER
] Switch
3 ress and hold in this switch for one second to turn
the transceiver on. Similarly, press and hold in this
switch for one second to turn the transceiver off.
[
TUNE
] Switch
This is the on off switch for the FT
DX
1200 ¶ s $ uto-
matic $ ntenna Tuner.
3 ressing this button momentarily places the antenna
tuner in line between the transmitter ¿ nal ampli ¿ er
and the antenna jack The “ TUNER ” icon will ap-
pear in the display). 5 eception is not affected.
3 ressing and holding in this button for two seconds,
while receiving in an amateur band, activates the
transmitter for a few seconds while the automatic
antenna tuner rematches the antenna system imped-
ance for minimum SW
5 . The resulting setting is au-
tomatically stored in one of the antenna tuner’s 100
memories for instant automatic recall later when the
receiver is tuned near the same fre
T uency.
3 ressing this button momentarily, while the Tuner is
engaged, will take the $ utomatic $ ntenna tuner out
of the transmit line.
N
OTE
:
When the $ utomatic $ ntenna Tuner is tuning itself,
a signal is being transmitted. Therefore, be certain
that an antenna or dummy load is connected to the
selected antenna jack before pressing and holding in
the [
TUNE
] switch to start antenna tuning.
KEY Jack
This 1 4-inch, 3-contact jack accepts a CW key or
keyer paddles for the built-in electronic keyer),
or output from an external electronic keyer. 3 inout
is shown on page 1 . . ey up voltage is 3.3 V
' C, and key down current is 4 m $ . This jack may
be con ¿ gured for keyer, “Bug”, “s traight key”, or
computer keying interface operation via 0 enu item
“
019 F CW KEYER
” see page 113). There is anoth-
er jack with the same name on the rea r panel, and it
may be con ¿ gured independently for Internal . eyer
or pseudo-straight-key operation.
N
OTE
:
You cannot use a -contact plug in this jack to do so
produces a constant “key down” condition).
F
RONT
P
ANEL
C
ONTROLS
& S
WITCHES